CKE sprite.png image for black styles

Hello,

I have customized my CKEditor to be black in order to fit my vbulletin black style.
But the problem is that the icons are not clear because many icons are black and will not be clear with black background



(Please only see the issue number 3)

the icons should look like this



Some guys told me that in order to make the icons more lighter I should get a sprite.png file which must fit the black background.

Anyone can provide that sprite.png?

Thanks in advance.